<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright   Copyright (c) 2014 X.commerce, Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */
/**
 * @var \Magento\Ui\FormElement\Select $this
 */
?>
<select>
    <?php foreach ($this->getData('options') as $option): ?>
        <?php if (is_array($option['value'])): ?>
            <optgroup label="<?php echo $option['label']; ?>">
                <?php foreach ($option['value'] as $subOption): ?>
                    <?php if (is_array($subOption['value'])): ?>
                        <optgroup label="<?php echo $subOption['label']; ?>">
                            <?php foreach ($subOption['value'] as $subSubOption): ?>
                                <?php if (!is_array($subSubOption['value'])): ?>
                                    <option value="<?php echo
                                        $subSubOption['value']; ?>"><?php echo $subSubOption['label']; ?></option>
                                <?php endif; ?>
                            <?php endforeach; ?>
                        </optgroup>
                    <?php else: ?>
                        <option value="<?php echo $subOption['value']; ?>"><?php echo $subOption['label']; ?></option>
                    <?php endif; ?>
                <?php endforeach; ?>
            </optgroup>
        <?php else: ?>
            <option value="<?php echo $option['value']; ?>"><?php echo $option['label']; ?></option>
        <?php endif; ?>
    <?php endforeach; ?>
</select>